enhance EnumConverter

hutool-core/src/test/java/cn/hutool/core/convert/EnumConvertTest.java

@@ -0,0 +1,56 @@
+package cn.hutool.core.convert;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * Enum转换单元测试
+ */
+public class EnumConvertTest {
+
+	@Test
+	public void convertTest(){
+		TestEnum bbb = Convert.convert(TestEnum.class, "BBB");
+		Assert.assertEquals(TestEnum.B, bbb);
+
+		bbb = Convert.convert(TestEnum.class, 22);
+		Assert.assertEquals(TestEnum.B, bbb);
+	}
+
+	@Test
+	public void toEnumTest(){
+		TestEnum ccc = Convert.toEnum(TestEnum.class, "CCC");
+		Assert.assertEquals(TestEnum.C, ccc);
+
+		ccc = Convert.toEnum(TestEnum.class, 33);
+		Assert.assertEquals(TestEnum.C, ccc);
+	}
+
+	enum TestEnum {
+		A, B, C;
+
+		public static TestEnum parse(String str) {
+			switch (str) {
+				case "AAA":
+					return A;
+				case "BBB":
+					return B;
+				case "CCC":
+					return C;
+			}
+			return null;
+		}
+
+		public static TestEnum parseByNumber(int i) {
+			switch (i) {
+				case 11:
+					return A;
+				case 22:
+					return B;
+				case 33:
+					return C;
+			}
+			return null;
+		}
+	}
+}